Quote:

My Dart runs 5.2x/8.2x and uses approx. 1gal for 1/8mile pass including all warmups, driving up and back, etc.
1/4mile uses approx. 1.5gal. With a Rupert 1250cfm.
Injection will double your fuel consumption.

That is a good example.
Everyone's setup will differ.

I have gotten better at conserving fuel with my Ron's injection system. So it isn't double a carb, but often people will burn more injected than using a carb. From what I have seen, you burn as much driving in the pits as going down the track. But with a carb or leaning the injection (or the primer plus system), it cuts it way back.

I was burning 0.7 gal/run with race gas.
I was burning 1.5 gal/run with methanol. And 1 gallon warm-up for the beginning of the day.
I was burning 1.0 gal/run with E85.
But now I have it down better driving in the pits and at the last few 1/8 mile races (1/4 mile track and still a long drive in the pits), I am only burning 0.8 gal/run with E85.

My friend's 493 CID little 1980's Charger was recently switched to a borrowed alcohol carb and he is only burning less than 1.0 gal/run (1/8 mile). It runs 5.7/9.1

1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1